2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.controller.md.sal.binding.impl;
10 import com.google.common.base.Preconditions;
11 import org.opendaylight.controller.md.sal.binding.api.ClusteredDataTreeChangeListener;
12 import org.opendaylight.controller.md.sal.binding.api.DataTreeChangeListener;
13 import org.opendaylight.controller.md.sal.binding.api.DataTreeChangeService;
14 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
15 import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeService;
16 import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeIdentifier;
17 import org.opendaylight.yangtools.concepts.ListenerRegistration;
18 import org.opendaylight.yangtools.yang.binding.DataObject;
19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
24 * Adapter exposing Binding {@link DataTreeChangeService} and wrapping
25 * {@link DOMDataTreeChangeService} and is responsible for translation
26 * and instantiation of {@link BindingDOMDataTreeChangeListenerAdapter}
29 * Each registered {@link DataTreeChangeListener} is wrapped using
30 * adapter and registered directly to DOM service.
32 final class BindingDOMDataTreeChangeServiceAdapter implements DataTreeChangeService {
34 private final BindingToNormalizedNodeCodec codec;
35 private final DOMDataTreeChangeService dataTreeChangeService;
37 private BindingDOMDataTreeChangeServiceAdapter(final BindingToNormalizedNodeCodec codec,
38 final DOMDataTreeChangeService dataTreeChangeService) {
39 this.codec = Preconditions.checkNotNull(codec);
40 this.dataTreeChangeService = Preconditions.checkNotNull(dataTreeChangeService);
43 static DataTreeChangeService create(final BindingToNormalizedNodeCodec codec,
44 final DOMDataTreeChangeService dataTreeChangeService) {
45 return new BindingDOMDataTreeChangeServiceAdapter(codec, dataTreeChangeService);
49 public <T extends DataObject, L extends DataTreeChangeListener<T>> ListenerRegistration<L> registerDataTreeChangeListener(
50 final DataTreeIdentifier<T> treeId, final L listener) {
51 final DOMDataTreeIdentifier domIdentifier = toDomTreeIdentifier(treeId);
53 @SuppressWarnings({ "rawtypes", "unchecked" })
54 final BindingDOMDataTreeChangeListenerAdapter<T> domListener =
55 listener instanceof ClusteredDataTreeChangeListener ?
56 new BindingClusteredDOMDataTreeChangeListenerAdapter<>(
57 codec, (ClusteredDataTreeChangeListener) listener, treeId.getDatastoreType()) :
58 new BindingDOMDataTreeChangeListenerAdapter<>(codec, listener, treeId.getDatastoreType());
60 final ListenerRegistration<BindingDOMDataTreeChangeListenerAdapter<T>> domReg =
61 dataTreeChangeService.registerDataTreeChangeListener(domIdentifier, domListener);
62 return new BindingDataTreeChangeListenerRegistration<>(listener,domReg);
65 private DOMDataTreeIdentifier toDomTreeIdentifier(final DataTreeIdentifier<?> treeId) {
66 final YangInstanceIdentifier domPath = codec.toYangInstanceIdentifierBlocking(treeId.getRootIdentifier());
67 return new DOMDataTreeIdentifier(treeId.getDatastoreType(), domPath);